117857833 has 2 divisors, whose sum is σ = 117857834. Its totient is φ = 117857832.

The previous prime is 117857801. The next prime is 117857851. The reversal of 117857833 is 338758711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71031184 + 46826649 = 8428^2 + 6843^2 .

It is a cyclic number.

It is not a de Polignac number, because 117857833 - 2⁵ = 117857801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117857833.

It is not a weakly prime, because it can be changed into another prime (117857533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58928916 + 58928917.

It is an arithmetic number, because the mean of its divisors is an integer number (58928917).

Almost surely, 2^117857833 is an apocalyptic number.

It is an amenable number.

117857833 is a deficient number, since it is larger than the sum of its proper divisors (1).

117857833 is an equidigital number, since it uses as much as digits as its factorization.

117857833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 43.

The square root of 117857833 is about 10856.2347524360. The cubic root of 117857833 is about 490.2897536563.

The spelling of 117857833 in words is "one hundred seventeen million, eight hundred fifty-seven thousand, eight hundred thirty-three".